US272878A - And embossing machine - Google Patents
And embossing machine Download PDFInfo
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- US272878A US272878A US272878DA US272878A US 272878 A US272878 A US 272878A US 272878D A US272878D A US 272878DA US 272878 A US272878 A US 272878A
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- 238000004049 embossing Methods 0.000 title description 36
- 239000003086 colorant Substances 0.000 description 22
- 239000000976 ink Substances 0.000 description 12
- 210000003128 Head Anatomy 0.000 description 10
- 230000001105 regulatory Effects 0.000 description 6
- 241000681094 Zingel asper Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002452 interceptive Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 241000735495 Erica <angiosperm> Species 0.000 description 2
- 210000002370 ICC Anatomy 0.000 description 2
- 240000007600 Lysimachia clethroides Species 0.000 description 2
- 241000276489 Merlangius merlangus Species 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000013707 sensory perception of sound Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
- B41F1/26—Details
- B41F1/40—Inking units
Definitions
- EDWARD HEW'ITT OF NEW YQRK, N. Y.; MINNIE HEWITT, ADMINISTRATRIX OF SAID HEWITT, DECEASED.
- Figure 1 represents a side elevation of my iinproyed plate-printing and embossing machine.
- Figs. 2 and 3 are detail side views,
- Fig. 4 is a side elevation, partly in section, of the machine, showing the side which is opposite to that shown in Fig. 1.
- Fig. 5 is a detail sec tional elevation, showing the mechanism forimparting intermittent rotary motion to that oneof the wipers which I style the polishingband.
- Fig. 6 is a front elevation of the machine.
- Figs.7 and 8 are vertical cross-sections of the die and printing-block, showing them respectively separated from and in contact with each other.
- Fig.9 is a vertical longitudinal section through the die and inking-box, showing also the railway on which the die is caused to travel on its way to and from the inking mechanism.
- Fig. 4 is a side elevation, partly in section, of the machine, showing the side which is opposite to that shown in Fig. 1.
- Fig. 5 is a detail sec tional elevation, showing the mechanism forimparting intermittent rotary motion to that oneof the wipers which I style the polishingband.
- Fig. 6 is
- Fig. 10 is a similar section, showing the die forced down upon the printing-block, as in Fig.8.
- Fig. 11 is a plan or top view, partly in section, of the machine.
- Fig. 12 is a bottom view of the carriage that carries the plate-holder.
- Fig. 13 is a bottom view of the plate-holder, showing the plate or die attached to the same.
- Fig. 14 is a top view of the same.
- Fig. 15 is a diagram showing 5 the dilferent colors as printed by my machine.
- Fig. 16 is a diagram showing a fourth color applied by my machine over those shown in Fig. 15.
- This invention relates to many improvements 0 on the machinery for plate-printing which was patented to me by Letters Patent No. 216,273, and No. 221,461.
- My invention consists in many detailsof improvement.wliich, in a preliminary manner, it 5 is very difficnlt to state.
- the salient points of the invention are the following:
- a further feature of invention consists in combining the rocking printing-block with means for adjusting it vertically.
- Another feature consists in combining the vertically-reciprocating slide, which controls the up and down motion of the die or plate, with a longitudinally horizontally movable block or carriage, which travelsin the railway to convey the die to the inking apparatus, and with a transversely horizontally movable plate or die holder, which travels in its path on the carriage by contact with the printing-block, as heretofore stated.
- a further feature of the invention consists in the mechanism by which the printing-block is rocked.
- This mechanism is a rod-and-link connection with a rotating shaft. which is revolved by a segmental gear, making one complete revolutionno more and no lesswhenever it is in contact with said gear, and at the same time the link-connection is made adjustable, so that, although the main shaft makes but one rotation, the stroke or degree of rocking of the printing-block may be easily regulated.
- a further feature of invention consists in combining with one wiper a peculiar second wiper for imparting the second polish or wiping to the lower face of the die or plate.
- This second wiper is an endless hand, held taut by the spring-bearings, adjustable by screws as to height, and placed around two shafts, of 0 V which one receives intermittent rotary motion by connection with the driving-gear of the machinery.
- This intermittent rotary motion may be dispensed with,- and slow rotary motion substituted; but I prefer the former.
- My invention also consists in a new combination of certain brushes or pencils for transmitting the colors from the respective compart- 2 avasas vthe inking and wiping operation can be thrown out of gear without affecting the stamping operation, to make the machine convertible at .pleasure into a printing or embossing apparatus, all as hereinafter more fully described.
- the letter B represents the frame of the machine, which frame is made of wood and metal, or either, of such size, form. and strength as will enable it to properly sustain in operative connection the parts of the machine, which I will hereinafter describe.
- This frame B carries a driving-shaft, (J, to which rotary motion is imparted by a suitable belt or otherwise by suitable power.
- the shaft U carries a pinion, d, which is shown by dotted lines in Fig. 4 and in full lines in Fig. 11, and this pinion is constantly in gear with a toothed wheel, 0, that is mounted upon a shaft, D, which is hung at the back of the machine.
- the shaft D carries fourprojeciing parts for moving different portions of the machine, to wit: first, a segmental toothed disk,ffor imparting motion to the inking and wiping mechanism, as hereinafter described; second, a projecting cam or eccentric, g, for imparting the vertical sliding motion to the stamping mechanism; third, a toothed segment, h, for imparting rocking motion to the printing-block; and, fourth, a small eccentric, 'i, for lifting and lowering the wiper.
- the segmentfran be thrown on the-shaft 1) into or out of gear with the pinion j, and is to this end connected with a clutch-lever, F.
- the lower end of the slide H has a horizontal dovetailed groove, in which is suspended the longitudinally-movable carriage I.
- This carriage, as I have termed it, is a blot-k capable of moving in direction parallel to the shaft D--t'. 6., longitudinally-and its lower face is grooved at right angles to the direction in which it is capable of moving, and receives in said dovetailed groove a transverse slide, J, which is the die or plateholder.
- the lower face of the carriage I which is shown in inverted plan view in Fig. 12 and sectionally in Figs.
- holder J carries friction-rollers 0, which are so hung as to revolve in direction at right angles to that in which the carriage moves, and which are in contact with the upper face of the die or plate holder J.
- the die or plate holder J is so arranged that the printing die, plate, or stamp, or the embossing die, plate, or stamp L,can be attar-hed to its lower lace either by the means of little screws or by clamps, or in any other suitable manner.
- holder J contains aspring or cushion, 1;,in a recess, (see Figs.
- asuitable swinging or other stop, 1 is applied to the rear end of the die or plate holder J, so as to strike the rear end of the carriage I when the die or plate holder is in the most forward position, asin Fig. 7; but by swinging the stop '7 out of the way of the carriage the slide J can be readily removed therefrom for the purpose of inserting a new die or plate, or of regulating the position of the one already contained therein, or tor displacing one die-holder by another.
- the spring 19 may, with substantially the same etfect, be placed into a groove or re' cess of the block from which the said die or plate holder is suspended, and a weight may be substituted for such spring 19, all of which I regard as full equivalents of the mechanism described in this connection.
- the printing-block O which in Figs. 7 and 8 is represented as a segmental block, but which may be a cylindrical block, if desired.
- Figs. 7 and 9 show the parts in their normal positionsjust before printing or embossing.
- the paper is placed upon the printing-block 0, suitable gages being provided to have one sheetplaced just like every other sheet.
- the slide H now descends, bringing the die L down upon the paper and pressing it with requisite force against the block 0.
- the rear end of the lever G is most elevated.
- the shaft M now begins to turn, causing the block 0 to rock from the position shown in Fig. 7 into the position shown in Fig. 8. Meanwhile the die L is pressed tight against said block, and therefore, as the die L is held in the transverse slideJ, it is caused by said contact to follow ICC 4 erases the backward movement of the block 0, and
- the wedgeP forconvenientoperation, is attached by a suitable screw or extensible rod, 00, with a lever, Q, Fig. 11, which lever is pivotedtotheframeB.
- a lever, Q, Fig. 11 which lever is pivotedtotheframeB.
- the wedge Byswingingsaidlever on its pivot the wedge can be withdrawn from under the blocks to sufficiently far as to lower the shaft N and its printing-block 0 out of .all possible contact with the die.
- This enables the operator at a momentsnoticeto throw the machine out of action by simply lowering the block 0 in manner stated.
- the slide P is pushed under the blocks to, so as to raise the printing-block 0 just enough to insure requisite contact and gentle pressure.
- theconi'iecting-screw 00 is extended or lengthened, so that the wedge P may be shoved farther beneath the blocks w, and the printing-block, with its shaft N, raised still more than is needed in the printing, and the requisite degree of pressure obtained.
- the surface of the block 0 is cushioned or covered in the manner usual with printing cylinders or pads; but for embo sing it is desirable to apply a counter-die to the locking block 0, so as to insure a more perfect impression and relief of the design on thepaper.
- Such counter die may, in some instances where great perfection of work is desired, also be used in the printing operation.
- the shaft E when thrown in gear, communicates motion by a link, 3/, to a crank, z, of a nion or pin of a slide, U, that moves in horizontal rails 61 which are formed in a projection of the head B", as clearly shown in Fig. 6.
- the lever-arm, T moves the slide U 011 the rails 01 from one end of its course to the other, back andforth.
- a rock-shaft,W,whieh carries a tine brush or pencil, h for each of the compartments 1 2 3.
- the brushes are dipped into the several colors or inks, as in Fig. 9; butjnst as the die approaches the inking-box a downwardly-projecting linger, W, on the slide U strikes a cranlcj, on the rock-shaft ⁇ V and swings said-rock-shaft so as to carry the brushes up into the path of the die or plate L, as indicated in Fig.
- the shaft W has at or near one end an angular projection or head, at", which bears with its flat or slightly-curved face upon a spring block or bolt, W.
- This spring-bolt will hold the rock-shaft in each of its two positions temporarily, but will nevertheless allow the same to be turned by the fingers and cranks, as stated.
- the box V is made so that it can be lifted or lowered more or less, and to this end it is provided with projecting eyes at the sides, as indicated in Fig. 11, through which pass posts that project from the frame-work B, and on these posts the -box V can slide up or down.
- a screw, 0 is fitted through the frame B, beneath the box V, as shown in Figs. 6 and 9, for lifting it or lowering it, as may be desired, said screw being so placed with reference to the posts above mentioned as to always hold the box in the horizontal position, no matter how it is raised or lowered, thus preventing the inks from flowing from one compartment into the other, which would be the case were the box to be tilted during the act of adjusting.
- the die L after ithas been inked, on its return motion to the slide H passes over the wiper X, which is a band of paper or equiva-.
- the paperX passes from C over suitable friction rollers, upwards upon and over the cushion A thence down to the shaft or drum B to which intermittent rotary motion is imparted by a pawhp hung in a loose arm, of the shaft B said arm being connected by a link, 1", with a crank, s of the shaft S.
- the shaft S being a rock-shaft, its oscillating movement will be imparted to the arm 1 so as to work the pawl 19 which projects into a ratchet-wheel that is mounted upo said shalt B
- the stroke of the pawl may be regulated by connecting the link o at greater or less distance from the shaft S with the crank 8 and to this end the crank s is slotted at its outer part, as in Fig. 6, and the pin that connects the link 4" with it has a nut applied to it to facilitate its adjustment and connection.
- the cushion A is the upper portion of a vertically sliding frame, D whose upright posts pass through theframe B, and which frame D connects at its lower part (see Fig. l) with cranks t of ashat't, Eiofwhich another crank, a connects with a rod, 20 which is, by a pivot pin, m fitted to the frame B.
- This pin :0 passes through a slot of the rod to, and permits the rod to move to the extent of the slot.
- the upper end of the rod to carries a frictionroller.
- the rod 4.0 is made extensible, as shown, to regulate the lif'tof the frame D.
- a suitable spring, a or an equivalent weight, or the weight of the frame D has the tendency so to swing the shaft E that the friction-roller at the upper end of the rod 10 will always be in contact with the eccentric i of the shaft D, and as this eccentric is revolved. It is clear that the rod w moves the shaft E so as to alternately lift and lower the frame D and with it the cushion A and wiper S. Now, the lifting of the frame D takes place when the die L, having been properly inked, returns to its place on the slide H.
- the ink is to be wiped from those parts of the exposed surface of the die at-which it is not desired in the actual process of printing, and it is desirable to have the wiper raised to properly wipe the die; but when the die moves to the inkingbox to be inked it is desirable that it should not touch the wiper, because the unnecessary wiping would more or less wear off the face of the die, interfere with the perfection of the engraving, and under all circumstances is needless.
- the lower shaft, 01 of this wiper F may be oscillated by the pawl and-rntchet connection with the shaft R, which is clearly shown by shaded lines in Fig. 5, or by any other mechanism.
- the wiper F by its soft surface, polishes and thoroughly cleans the face of the die or plate, and maybe prepared with whiting or otherwise to increase its effect.
- the printing-machine which is capable of printing colors upon paper, can be transformed bythe motion of one lever F into an embossing-machine, so that both kinds of work can be performed on the same machine.
- Paper may be merelyembossed in blank, oritmay be embossed after it has been printed, or it may be made to printwithout being embossed, all upon the same machine.
- the machine can be used to print in series of colors the designs, for example, as shown in Fig. 15. How this is accomplished I have endeavored to describe. After the paper has received through the use of the compartment ink-box the stripes of colors, as shown in Fig. 15, a second printing operation in the same machine will permit me to apply over these stripes of colors the design which is indicated in Fig.
- the solitary'compartment box having one color only with which it is desired to print over the tinted surface; but instead of having a second impression made with but one color it may also be made with a series of colors, and a third impression may be superposed,if desired, and after all the printing has been performed the paper may be embossed by further operation on the same machine.
- the die or plate holder J combined with mechanism, substantially as described, for first moving it downward upon the platen, then horizontally under pressure, and then upward, substantially as specified.
- the horizontally-movable die-holder J suspended from the vertically-movable slide H, in combination with a lower printing-block, and with mechanism, substantially as de scribed, for moving said block, and thereby also moving the die or plate horizontally, substantially as described.
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Description
model.) 4Sheets-Sheet 1. B. HEWITT, Deod., I
M. HEWITT, Administratrix. PLATE PRINTING AND EMBOSSING MACHINE.
No. 272,878. Patented Feb.27,1883
i 3x 00L I v Y1 Z flegsgs' -Dzzenian N. PETERS. FhokoLllhngrzphnr, Wuhilqkm D. C.
2 t e e h s s t 6 Av h s 4 m or m D 3m Tm d TA I Wm Em H .M E J m d 0 m PLATE PRINTING AND EMBOSSING MACHINE.
Patented Feb.'27, 1883.
Witnesses.
(Model.
u 4 Sheets-Sheet 3 i E. HEWITT, Decd.,
M. HEWITT, Administratrlx. PLAT-B PRINTING AND BMBOSSING MACHINE.
Patented Feb.27, 1883. (Q
(ModeL) 4 Sheets-Sheet 4. E. HEWITT, De0d., I
M. HEWITT, Administratrix. PLATE PRINTING AND EMBOSSING MACHINE.
No. 272.878. Patented Feb. 27, 1883.
Wirzessea. p .[nvenfim N. PETER PhOlD-Likhnlnphln Wuhington. O. C.
NITED STATES U'ATENT Erica.
EDWARD HEW'ITT, OF NEW YQRK, N. Y.; MINNIE HEWITT, ADMINISTRATRIX OF SAID HEWITT, DECEASED.
PLATE-PRINTING AND EMBOSSING MACHINE.
SPECIFICATION forming part of Letters Patent No. 272,878, dated February 27, 1883. Application filed March 5, 1881. (ModeL) To all whom it may concern:
Be it known that 1', EDWARD HEWITT. of New York, in the county and State of New York, have invented an Improved Plate Printing and Embossing Machine,ot' which the following is a specification.
Figure 1 represents a side elevation of my iinproyed plate-printing and embossing machine. Figs. 2 and 3 are detail side views,
to showing the mechanism for swinging the inking-brush in difl'erent positions. Fig. 4 is a side elevation, partly in section, of the machine, showing the side which is opposite to that shown in Fig. 1. Fig. 5 is a detail sec tional elevation, showing the mechanism forimparting intermittent rotary motion to that oneof the wipers which I style the polishingband. Fig. 6 isa front elevation of the machine. Figs.7 and 8 are vertical cross-sections of the die and printing-block, showing them respectively separated from and in contact with each other. Fig.9is a vertical longitudinal section through the die and inking-box, showing also the railway on which the die is caused to travel on its way to and from the inking mechanism. Fig. 10 is a similar section, showing the die forced down upon the printing-block, as in Fig.8. Fig. 11 is a plan or top view, partly in section, of the machine. 0 Fig. 12 is a bottom view of the carriage that carries the plate-holder. Fig. 13 is a bottom view of the plate-holder, showing the plate or die attached to the same. Fig. 14 is a top view of the same. Fig. 15 is a diagram showing 5 the dilferent colors as printed by my machine. Fig. 16 is a diagram showing a fourth color applied by my machine over those shown in Fig. 15.
This inventionrelates to many improvements 0 on the machinery for plate-printing which was patented to me by Letters Patent No. 216,273, and No. 221,461.
My invention consists in many detailsof improvement.wliich, in a preliminary manner, it 5 is very difficnlt to state. The salient points of the invention, however, are the following:
First, the combination of a rocking printingblock with the horizontally-sliding and. vertically-movable die, and with actuating mechanism,.all so arranged that when the printing-block and the die are in contact with the paper between them, and the block is rocked, the die is made to slide thereby, and to thus transfer to the paper which is interposed between the two the color or colors in the order in which they are applied to the lower face of thedie, the paper also sharing in the sliding motion of the die.
A further feature of invention consists in combining the rocking printing-block with means for adjusting it vertically. Another feature consists in combining the vertically-reciprocating slide, which controls the up and down motion of the die or plate, with a longitudinally horizontally movable block or carriage, which travelsin the railway to convey the die to the inking apparatus, and with a transversely horizontally movable plate or die holder, which travels in its path on the carriage by contact with the printing-block, as heretofore stated.
A further feature of the invention consists in the mechanism by which the printing-block is rocked. This mechanism is a rod-and-link connection with a rotating shaft. which is revolved by a segmental gear, making one complete revolutionno more and no lesswhenever it is in contact with said gear, and at the same time the link-connection is made adjustable, so that, although the main shaft makes but one rotation, the stroke or degree of rocking of the printing-block may be easily regulated.
A further feature of invention consists in combining with one wiper a peculiar second wiper for imparting the second polish or wiping to the lower face of the die or plate. This second wiper is an endless hand, held taut by the spring-bearings, adjustable by screws as to height, and placed around two shafts, of 0 V which one receives intermittent rotary motion by connection with the driving-gear of the machinery. This intermittent rotary motion may be dispensed with,- and slow rotary motion substituted; but I prefer the former.
My invention also consists in a new combination of certain brushes or pencils for transmitting the colors from the respective compart- 2 avasas vthe inking and wiping operation can be thrown out of gear without affecting the stamping operation, to make the machine convertible at .pleasure into a printing or embossing apparatus, all as hereinafter more fully described.
In the accompanying drawings, the letter B represents the frame of the machine, which frame is made of wood and metal, or either, of such size, form. and strength as will enable it to properly sustain in operative connection the parts of the machine, which I will hereinafter describe. This frame B carries a driving-shaft, (J, to which rotary motion is imparted by a suitable belt or otherwise by suitable power. The shaft U carries a pinion, d, which is shown by dotted lines in Fig. 4 and in full lines in Fig. 11, and this pinion is constantly in gear with a toothed wheel, 0, that is mounted upon a shaft, D, which is hung at the back of the machine. The shaft D carries fourprojeciing parts for moving different portions of the machine, to wit: first, a segmental toothed disk,ffor imparting motion to the inking and wiping mechanism, as hereinafter described; second, a projecting cam or eccentric, g, for imparting the vertical sliding motion to the stamping mechanism; third, a toothed segment, h, for imparting rocking motion to the printing-block; and, fourth, a small eccentric, 'i, for lifting and lowering the wiper.
The segmental diskf gears into a pinion,j, which is shown by dotted lines in Figs. 4 and 6, and which is mounted upon a shalt, E, that hangs in the lower part of the frame. The segmentfran be thrown on the-shaft 1) into or out of gear with the pinion j, and is to this end connected with a clutch-lever, F. l Vhen the segmentj'is thrown out of gear the shaft E is not revolved; but when the segment fis thrown into gear the shaft E is revolved at about the following rate, to wit: it is .revolved once to about every halt-revolution of the shaft D and stationary to every other half of that revolution; but when the segment fis thrown out of gear the shaft D is nevertheless revolved, and continues to affect so much of the machinery as derives motion from the cam g, segment h, and eccentric i. In making the machine for actual work I shall prefer to unite the eccentric tit) the segmentfin such manner that both shall be thrown out of gear and into gear simultaneously.
I shall now proceed to describe the four principal subdivisions of the machine as controlled bythe four moving portionsfg h i of the shaft D, commencing with that portion which is controlled by the cam g. Upon this cam rests a lever, G, which I will call the stamping-lever, and which is weighted at its outer end, where it bears upon said cam. The pivot or fulcrum of this lever is at in a goose-neck or arched head, B that projects from the frame of the machine, and in which head the vertically-reciprocating stamp or slide H is located,as is clearlyshown in Fig. 4. This stamp or slide H connects at its upper end by atogglejoint, l, with the upper portion of the head B", so as to be suspended therefrom. The middle link, m, of this toggle projects backward, and unites with the lever G, as is clearly shown in Fig. 4. The operation of this part of the mechanism is as follows: When the cam g lifts the weighted rear end of the lever G the toggles l are spread so as to lower the slide H and move it downward with great force; but when the cam g recedes from under the lever Grv the weight n on said lever G causes the same to follow the cam and to pull the link on backward, contracting thereby the toggle and lifting the slide H. Thus, by the mechanism just described, I obtain reciprocating motion of the stamp or slide H in such a manner that great force is derived in the downward motion, none being particularly required for the upward motion. I
The lower end of the slide H has a horizontal dovetailed groove, in which is suspended the longitudinally-movable carriage I. This carriage, as I have termed it, is a blot-k capable of moving in direction parallel to the shaft D--t'. 6., longitudinally-and its lower face is grooved at right angles to the direction in which it is capable of moving, and receives in said dovetailed groove a transverse slide, J, which is the die or plateholder. The lower face of the carriage I, which is shown in inverted plan view in Fig. 12 and sectionally in Figs. 7, 8, 9, and 10, carries friction-rollers 0, which are so hung as to revolve in direction at right angles to that in which the carriage moves, and which are in contact with the upper face of the die or plate holder J. The die or plate holder J is so arranged that the printing die, plate, or stamp, or the embossing die, plate, or stamp L,can be attar-hed to its lower lace either by the means of little screws or by clamps, or in any other suitable manner. holder Jcontains aspring or cushion, 1;,in a recess, (see Figs. 7, 8, and 14,) and when the die or plate holderJ is suspended from the grooved carriage I a downwardly-projecting pin, g, on the carriage I bears against one end (in this instance the rear end) of the springp, so as thus to confine said spring between the pin q of the carriage and a suitable supportingshoulder, q of the die or plate holder, and consequently, if the die or plate holder is slid backward from the position shown in Fig. 7 to that The upper part of the die or plate IIO geases I shown in Fig. 8, the spring 10 is compressed, and when the power that slides it backward is taken away the tendency of the spring 1) to ex.- tend will throw the (lie or plate holder from the position shown in Fig. 8 back into the position shown in Fig. 7.
In order to prevent the spring from throwing the slide J too far forward, or, in fact, out of the carriage, asuitable swinging or other stop, 1, is applied to the rear end of the die or plate holder J, so as to strike the rear end of the carriage I when the die or plate holder is in the most forward position, asin Fig. 7; but by swinging the stop '7 out of the way of the carriage the slide J can be readily removed therefrom for the purpose of inserting a new die or plate, or of regulating the position of the one already contained therein, or tor displacing one die-holder by another.
The combination of the vertically-reciprocating slide H with the longitudinally-movable carriage I and transversely-movable dieholder J is by me deemed to be a very prominent feature of my present invention, because it permits me to automatically reciprocate the die or plate holder when it is in the printing or embossing position without disturbing its connection with the vertically reciprocating slide H, and without interfering; with the facility forinking and wiping the die, which depends upon the connection with the carriage I.
I have already stated, and the subsequent description of the machine will make it still more clear, that the slide or carriage I is used because of the necessity of inking and wiping the printing die or plate; butI have also stated that my machine may be used for embossing, and it is quite clear that in that case no inking and no wiping of the die are needed, and it is likewise clear that ifthe machine which has all the features of my invention, but does not need the inking and wiping, is to be used, the carriage I, as such, may be dispensed with, and will in that case become part and parcel of the slide H. In other words, in that case the friction-rollers 0 will be hung in'the lower part of the slide H, the pin q will be attached to the lower part of the slide H, and the catch 1' will bear against the rear of the slide H, so that, although the combination of the slide H with the longitudinally-movable carriage I and laterally-movable slide J constitutes one feature of my invention for the purpose of producing a printing-machine, 1 do not limit myself in all cases to the use of the interposed carriage l, as the machine will be operative for embossing when said carriage I is made rigid on the slide H, or, in other words, when the lower part of the slide H is so formed in the embossing-machine as the lower part of the carriage I is in the printing-machine.
I also desire it to be fully understood that I do not limit myself to the specific use on the slide H or carriage I of the dovetailed grooves and projections shown, for it is very clear that, instead of forming the "dovetailed groove on the slide H and the dovetailed projection on the carriage I, the groove may be on the upper face of I and the projection on the lower faceot' H, and the same remarks apply to the contact-surfaces ot' the parts I and J, which also may be made by providing that which supports the slide J with suitable rails, on which the slide J is suspended. Instead of placing the spring 19 into a groove or recess of the die-holder J, it may, with substantially the same etfect, be placed into a groove or re' cess of the block from which the said die or plate holder is suspended, and a weight may be substituted for such spring 19, all of which I regard as full equivalents of the mechanism described in this connection.
Now, pass to the second projection on the shaft D, which is the segmental gear-wheel h. This segmental gear h meshes into the teeth of a pinion, s, that is hung on a shaft, M, which has its hearings in suitable blocks that are attached to the frame B. The toothed segment 71-, which is more clearly shown in Fig. 1, is so placed upon the shaft D, which revolves in the direction of the arrow shown in Fig. 1, that just when the rear end of the lever G is in the most elevated position, and consequently the slide H completely forced down, the segment It will begin to gear into the pinion s. so that the shaft M will receive one revolution around its axis-no more and no less-the first part of which revolution will take place while the lever G is lifted by the cam g, and the second part when said lever begins to drop toward the shaft D. An extensible crank-pin, t, on the shaft M connects by a link, it, with the crank v of a rock-shalt, N, that is hung in bearings 20, directly beneath the slide 11. The revolution of the shaft M rocks the shaft N first backward and then forward, bringing it, after the completion of the.
revolution, always back to the same normal position. Upon the rock-shaft N is mounted, directly beneath the slide H, the prin ting-block O, which in Figs. 7 and 8 is represented as a segmental block, but which may be a cylindrical block, if desired.
In order, now, to fully uiulerstand the printing or embossing operation as produced by the block 0 and die or plate L, reference can best be made to Figs. 7, 8, 9, and 10. Figs. 7 and 9 show the parts in their normal positionsjust before printing or embossing. The paper is placed upon the printing-block 0, suitable gages being provided to have one sheetplaced just like every other sheet. The slide H now descends, bringing the die L down upon the paper and pressing it with requisite force against the block 0. At this stage the rear end of the lever G is most elevated. The shaft M now begins to turn, causing the block 0 to rock from the position shown in Fig. 7 into the position shown in Fig. 8. Meanwhile the die L is pressed tight against said block, and therefore, as the die L is held in the transverse slideJ, it is caused by said contact to follow ICC 4 erases the backward movement of the block 0, and
to travel along in a backward direction, and thus transfer to the paper the impression desired until the most backward position of both portions 0 and L is attained, as shown in Fig.8. At this stage the rear end of the lever G begins to drop, pressure ceases to be exerted upon the paper, the slide H is 1ifted,the die-holder J sprung forward under the influence of the spring 19, and the block 0 rocked backward under the influence of the second half rotation of the shaft M.
In embossing, the pressure is of great importance. The toggle mechanism lm, which 'I have already described, enables me to obtain very great pressure, and in this connection I have made the bearing-blocks w of the shaftN vertically movable, so that the more pressure is needed the more I shall lift the shaft N, all of which can be done without interfering with the connection of the shaft N with its operatingshaft M. To this end I now refer to the wedgeshaped slide P, which is clearly shown in Figs. 9 and 10. and which actually supports the blocks to to. These blocks may, for vertical guidance, slide on projecting pins, as indicated in the drawings, and they can be raised or lowered by sliding the wedge P farther or less far beneath them. The wedgeP,forconvenientoperation, is attached by a suitable screw or extensible rod, 00, with a lever, Q, Fig. 11, which lever is pivotedtotheframeB. Byswingingsaidlever on its pivot the wedge can be withdrawn from under the blocks to sufficiently far as to lower the shaft N and its printing-block 0 out of .all possible contact with the die. This enables the operator at a momentsnoticeto throw the machine out of action by simply lowering the block 0 in manner stated. For printing, the slide P is pushed under the blocks to, so as to raise the printing-block 0 just enough to insure requisite contact and gentle pressure. For embossing, however, theconi'iecting-screw 00 is extended or lengthened, so that the wedge P may be shoved farther beneath the blocks w, and the printing-block, with its shaft N, raised still more than is needed in the printing, and the requisite degree of pressure obtained.
In printing, the surface of the block 0 is cushioned or covered in the manner usual with printing cylinders or pads; but for embo sing it is desirable to apply a counter-die to the locking block 0, so as to insure a more perfect impression and relief of the design on thepaper. Such counter die may, in some instances where great perfection of work is desired, also be used in the printing operation.
Having now described all that is necessary to make the embossing-machine, I desire to add that all that is desirable on the embossing-machine is also desirable on the printingmachine, but that the la ter needs thefurther devices which I will now describe.
The shaft E, when thrown in gear, communicates motion by a link, 3/, to a crank, z, of a nion or pin of a slide, U, that moves in horizontal rails 61 which are formed in a projection of the head B", as clearly shown in Fig. 6. As the shaft S is rocked by the connections described, or by any other suitable connection, the lever-arm, T, moves the slide U 011 the rails 01 from one end of its course to the other, back andforth. WhentheslideUisnearesttheslide H, as shown in Fig. 10, is the time when printing actually takes place, and consequently when the slides I and J are in the lowermost positions, and in this position an eye, 6 projecting sideways from the carriage I, is directly beneath a pin,f that projects downward from the slide U, as clearly shown in Fig. 10. As soon as the slide H is lifted the pin f enters the eye 0 and when it has fully entered it, as shown in Fig. 9, the slide or carriage I is just in line with dovetailed rails 9 that are formed on the projection of the headB", as indicated in Figs. 9 and 10. These dovetail rails will bejust in line with those on the slide H when the latter is raised. When the slide H is raised to its utmost limit the carriage I, which is in line with the rails 9 is taken hold of by the slide U and moved away from the slide H along the rails 9 sharing the movements of the slide U, that are imparted to the same by the lever T. In this horizontal movement the lower face of the die is inked and wiped. It is first inked. At the extreme of its outward stroke the die arrives over the inking-box V, which is supported on the frame 13, and which has as many compartments, side by side, as it is desired to have colors printed at the same operation. These compartments, which are marked 1 2 3 in Fig. 11, are parallel with the movement of the slide U.
Above the box V is placed, in suitable bearings, a rock-shaft,W,whieh carries a tine brush or pencil, h for each of the compartments 1 2 3. When the carriage I is about to arrive over the inking-box V the brushes are dipped into the several colors or inks, as in Fig. 9; butjnst as the die approaches the inking-box a downwardly-projecting linger, W, on the slide U strikes a cranlcj, on the rock-shaft \V and swings said-rock-shaft so as to carry the brushes up into the path of the die or plate L, as indicated in Fig. 2, and as the said die now moves on in its outward movement its lower face is brushed or painted by the several brushes or pencils in streaks of the several colors taken from the compartments 1 2 3, or such of them as are filled with ink or color. On the back- IIO ward or return motion of the slide U anotherfinger, W, on the slide U strikes another crank, Z on shaft W and swings the said shaft back to again dip the brushes into the ink.
The shaft W has at or near one end an angular projection or head, at", which bears with its flat or slightly-curved face upon a spring block or bolt, W. This spring-bolt will hold the rock-shaft in each of its two positions temporarily, but will nevertheless allow the same to be turned by the fingers and cranks, as stated. After the finger i has started the rock-shaft by striking the crank 9' so that it will be turned at about an angle of seventyfive degrees by the actual contact of said finger with said crank, the springbolt will increase the swingto about ninety degrees, thereby carrying the crank j out of the way of the finger i on the return-stroke of the slide U, andinlike manner, when thebrushcs are dipped into the ink agaimthe crank Z will be carried out of the way of the finger k". In other words,
the spring of the bolt 41. will assist in increasing the movement of the shaft W beyond what movement it actually derives by the contact with said finger and cranks.
The box V is made so that it can be lifted or lowered more or less, and to this end it is provided with projecting eyes at the sides, as indicated in Fig. 11, through which pass posts that project from the frame-work B, and on these posts the -box V can slide up or down. A screw, 0 is fitted through the frame B, beneath the box V, as shown in Figs. 6 and 9, for lifting it or lowering it, as may be desired, said screw being so placed with reference to the posts above mentioned as to always hold the box in the horizontal position, no matter how it is raised or lowered, thus preventing the inks from flowing from one compartment into the other, which would be the case were the box to be tilted during the act of adjusting. The die L, after ithas been inked, on its return motion to the slide H passes over the wiper X, which is a band of paper or equiva-.
lent substance drawn over a cushion, A and 'wound upon a shaft or drum, B from a shaft or drum, G The paperX passes from C over suitable friction rollers, upwards upon and over the cushion A thence down to the shaft or drum B to which intermittent rotary motion is imparted by a pawhp hung in a loose arm, of the shaft B said arm being connected by a link, 1", with a crank, s of the shaft S.- The shaft S being a rock-shaft, its oscillating movement will be imparted to the arm 1 so as to work the pawl 19 which projects into a ratchet-wheel that is mounted upo said shalt B The stroke of the pawl may be regulated by connecting the link o at greater or less distance from the shaft S with the crank 8 and to this end the crank s is slotted at its outer part, as in Fig. 6, and the pin that connects the link 4" with it has a nut applied to it to facilitate its adjustment and connection.
Iprefer the mechanism just described for imparting motion to the wiping-paper, because it is nicely adjustable to larger or-smaller dies, which may be used in the same machine, and it is also conveniently accessible to the operator, being all exposed at the face of the machine, as indicated in Fig. 6; yet I do not wish to limit myself to this mechanism.
The cushion A is the upper portion of a vertically sliding frame, D whose upright posts pass through theframe B, and which frame D connects at its lower part (see Fig. l) with cranks t of ashat't, Eiofwhich another crank, a connects with a rod, 20 which is, by a pivot pin, m fitted to the frame B. This pin :0 passes through a slot of the rod to, and permits the rod to move to the extent of the slot. The upper end of the rod to carries a frictionroller. The rod 4.0 is made extensible, as shown, to regulate the lif'tof the frame D. A suitable spring, a or an equivalent weight, or the weight of the frame D has the tendency so to swing the shaft E that the friction-roller at the upper end of the rod 10 will always be in contact with the eccentric i of the shaft D, and as this eccentric is revolved. it is clear that the rod w moves the shaft E so as to alternately lift and lower the frame D and with it the cushion A and wiper S. Now, the lifting of the frame D takes place when the die L, having been properly inked, returns to its place on the slide H. At this time the ink is to be wiped from those parts of the exposed surface of the die at-which it is not desired in the actual process of printing, and it is desirable to have the wiper raised to properly wipe the die; but when the die moves to the inkingbox to be inked it is desirable that it should not touch the wiper, because the unnecessary wiping would more or less wear off the face of the die, interfere with the perfection of the engraving, and under all circumstances is needless. Therefore the frame Dis lowered as soon as the die has been wiped on its way to the slide H, and not raised until the die has passed over the wiper X on its way to the brush or brushes k Directly after the die has been wiped by the wiper X, I prefer to have it wiped once more; and to this end I have placed immediately between the wiper X and the printing-block 0 another wiper, F or polishing-band, which is an endless apron, made of felt or other suitable fabric, passed over two rollers, 11 and 61 The upper roller, b is hung in boxes which slide in t'ramesf that project upward from the frame B, and that can be raised or lowered at will by screws 9 Fig. 5. The lower roller, (1 hangs in boxes M, which are fitted into frames 2', (indicated in Figs. 4 and 6,) and springs j, Fig. 6, bear upon the boxes b so as to distend and stretch the apron F and hold ittaut. The lower shaft, 01 of this wiper F may be oscillated by the pawl and-rntchet connection with the shaft R, which is clearly shown by shaded lines in Fig. 5, or by any other mechanism. The wiper F by its soft surface, polishes and thoroughly cleans the face of the die or plate, and maybe prepared with whiting or otherwise to increase its effect.
I have endeavored in the foregoing specification to faithfully describe all the necessary parts of the machine, and I have also sought to point out the more prominent portions thereof. I regard it as a feature of great importance that the printing-machine, which is capable of printing colors upon paper, can be transformed bythe motion of one lever F into an embossing-machine, so that both kinds of work can be performed on the same machine. Paper may be merelyembossed in blank, oritmay be embossed after it has been printed, or it may be made to printwithout being embossed, all upon the same machine. This of course is to the actual printer a verygreat advantage; yet, after all, I do not wish to limit myself, as far as the important features of myinvention are concerned, to a machine which can be thus transformed from one operation to another, as many of the principles are applicable to a machine which is simply an embossing-machine or simply a printingmachine.
The machine can be used to print in series of colors the designs, for example, as shown in Fig. 15. How this is accomplished I have endeavored to describe. After the paper has received through the use of the compartment ink-box the stripes of colors, as shown in Fig. 15, a second printing operation in the same machine will permit me to apply over these stripes of colors the design which is indicated in Fig. 16, to which end the box Vmust be removed and another box having but one compartment put in itsplace, the solitary'compartment box having one color only with which it is desired to print over the tinted surface; but instead of having a second impression made with but one color it may also be made with a series of colors, and a third impression may be superposed,if desired, and after all the printing has been performed the paper may be embossed by further operation on the same machine.
I claim- 1. The combination of the shaft D and its cam g with the lever G, carrying the weightn on its long arm, and with toggle mechanism llm and slide or stamp H, all arranged so that the toggles will be extended at the downward and contracted at the automatic upward motionof said slide, substantially as specified.
2. The combination of the vertically-reciprocating slide H with the longitudinally liorr zontally movable carriage I and transverselymovable die-holder J, and with a lower platen moving in the direction horizontally in which the die-holder moves in the carriage I, substantially as described. Y
3. Theslide H, provided with alongitudinal groove in its lower face, in combination with the carriage I, having a transverse groove in its lower face, and with the die-holder J and placed into the vertically-reelprocating block,
beneath which said die or plate holder moves horizontally, and with a lower oscillating platen, substantially as described.
5. The combination of the vertically-reciprocating slide H, and of the die. or plate holder J, with the spring 19. carried by the slide H, and with the lower oscillatingplaten, substantially as described.
6. In 'a die or plate printing machine, the die or plate holder J, combined with mechanism, substantially as described, for first moving it downward upon the platen, then horizontally under pressure, and then upward, substantially as specified.
7. In a die or plate printing or embossing machine, the combination of the vertically and horizontally movable slide J, carrying the die or plate L, with the rocking block 0, all arranged so that when the die is depressed vertically the block begins to move, carrying the die by frictional contact with it horizontally, substantially as described.
8. In a die or plate printing or embossing machine, the horizontally-movable die-holder J, suspended from the vertically-movable slide H, in combination with a lower printing-block, and with mechanism, substantially as de scribed, for moving said block, and thereby also moving the die or plate horizontally, substantially as described.
9. The combination oftheslideH and its actu- 0, and with mechanism, substantially as described, for transmitting the movement of the shaft M to the printing-block 0, all arranged so that the shaft M will begin to revolve when the cam g raises the rear end of the lever to its highestposition, substantially as described.
11. The combination of the prin ting-block O and oscillating shaft N, that supports it, with the vertically-adjustable bearing-blocks w, in which said shaft is hung, and with the wedgeshaped slide P,'subst-antially as described.
12. The combination of the lever Q, extensible red at, and wedge-shaped slide P with the bearing-blocks w, rock-shaft N, and printing-block 0, substantially as described.
13. The combination of the slide H, carrying the horizontally-sliding die and plate holder J, with the printing-block O, and with mechanism, substantially as herein specified, for rocking the block 0, and with mechanism, substantially as 'specitied,for adjusting the same in the vertical direction, substantially as described. i
14. The combination of the rock-shaft W, having the brushes IF, and the cranks f and Z with the slide U, having fingers i and k, and with the spring-bolt 01 all arranged for operation substantially as described.
15. In combination with the slide U, traveling on fixed rails, the inking-box V, dippingbrush h carried by said box, and with the adjusting-screw 0 for lifting or lowering the box and the brush simultaneously, substantially as described.
16. The wiping-cushion A andits frame D combined with the inking-box V, and with the sliding die L, and with mechanism, substantially as described, for alternately lifting and lowering the frame D?, all arranged. so that the die is wiped by the'raised cushion A while moving in a direction at right angles to the direction in which it moves during the act of printing, substantially as described.
17. In a machine for die or plate printing, the combination of the plate-carrying reciproeating block U with the wiper X, arranged to move up and down, as specified, and with the second wiper or polisher, F placed between the wiper X and the printing-block 0, substantially as described. o
18. In a machine for die and plate printing, the combination of the vertically movable wiper X with intermittently-rotating wiper F substantially as described.
19. In a machine for plate-printing or em- 5 EDWARD HEWITT.
\Vitnesses:
WILLY G. E. SCHULTZ, WILLIAM H. (J. SMITH.
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US272878D Expired - Lifetime US272878A (en) | And embossing machine |
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